نتایج جستجو برای: subsurface runoff
تعداد نتایج: 29610 فیلتر نتایج به سال:
Plans for land and water management in the Tumkur district of Karnataka's Halayapura micro-watershed were created using geospatial tools. The examination morphological traits a employed Arc GIS software. According to current study, drainage system had dendritic design with trunk order 4. has maximum area 503 ha, length 4.40 km, width 2.20 km. bifurcation ratio mean value 2.5. It shows that ther...
Hillslope runoff and leaching studies, catchment-scale water quality measurements and P retention and release characteristics of stream bank and catchment soils were used to better understand reasons behind the reported ineffectiveness of riparian buffers for phosphorus (P) management in catchments with sandy soils from south-west Western Australia (WA). Catchment-scale water quality measuremen...
While tropical montane cloud forests (TMCF) provide critical hydrological services to downstream regions throughout much of the humid tropics, catchment hydrology and impacts associated with forest conversion in these ecosystems remain poorly understood. Here, we compare the annual, seasonal and event-scale streamflow patterns and runoff generation processes of three neighbouring headwater catc...
The need for effective water quality models to help guide management and policy, extend monitoring information, is at the forefront of recent discussions related watershed management. These are often calibrated validated basin outlet, which ensures that capable evaluating scale hydrology quality. However, there a understand where these succeed or fail with respect internal process representatio...
a r t i c l e i n f o a b s t r a c t A new catalog of 210 open-basin lakes (lakes with outlet valleys) fed by valley networks shows that they are widely distributed in the Noachian uplands of Mars. In order for an outlet valley to form, water must have ponded in the basin to at least the level of the outlet. We use this relationship and the present topography to directly estimate the minimum a...
Transport of nitrogen in soil water following the application of animal manures to sloping grassland
A field experiment was conducted on a sloping grassland soil in southwest England to investigate the downslope transport of nitrogen in soil water following the application of cattle manure, slurry and inorganic fertilizer. Transport of nitrogen (N) species was monitored on hydrologically isolated plots. Manure (50 t ha"), slurry (50 m ha") and fertilizer (250 kg N ha") were applied in February...
Abstract. Inspired by a quotation from Howard Cook in 1946, this paper traces the evolution of infiltration theory runoff work Robert Horton and LeRoy Sherman 1930s to early digital computer models 1970s 1980s. The reasons for popularity are considered its impact on way which hydrological responses were perceived several generations hydrologists. Reconsideration perceptual model many catchments...
The advantages and disadvantages of subsurface drip irrigation (SDI) as compared to alternative irrigation systems are conceptually discussed. Each category (advantages and disadvantages) is subdivided into three groups: 1) Water and soil issues; 2) Cropping and cultural practices, and 3) System infrastructure issues. The adaptation and adoption of SDI systems into diverse cropping systems, geo...
The effects of acidic precipitation on stream chemistry were measured on an east-central Pennsylvania basin. When combined with flow and chemical mass balances, the data can help quantify hydrological source areas and their contributions to acidic storm hydrographs. For small storms on the well-buffered agricultural basin, small volumes of acidic precipitation falling directly on the stream sur...
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